Latex 公式

# 希腊字母# 操作符# 关系运算符# 箭头# 重音符号# 数学公式# 括号# 方程组# 矩阵

希腊字母

symbol	latex	symbol	latex	symbol	latex	symbol	latex
	\alpha		\theta		o		\upsilon
	\beta		$\vartheta		\pi		\phi
	\gamma		\iota		\varpi		\varphi
	\delta		\kappa		\rho		\chi
	\epsilon		\lambda		\varrho		\psi
	\varepsilon		\mu		\sigma		\omega
	\zeta		\nu		\varsigma
	\eta		\xi		\tau

symbol	latex	symbol	latex	symbol	latex	symbol	latex
	\Ggamma		\lambda		\Sigma		\Psi
	\Delta		\Xi		\Upsilon		\Omega
	\Theta		\Pi		\Phi

二元操作符

symbol	latex	symbol	latex	symbol	latex	symbol	latex
	\pm		\cap		\diamond		\oplus
	\mp		$\cup		\bigtriangleup		\ominus
	\times		\uplus		\bigtriangledown		\otimes
	\div		\sqcap		\triangleleft		\oslash
	\ast		\sqcup		\triangleleft		\odot
	\star		\vee		\lhd		\bigcirc
	\circ		\wedge		\rhd		\dagger
	\bullet		\setminus		\unlhd		\ddagger
	\cdot		\wr		\unrhd		\amalg
	+		-

关系运算符

symbol	latex	symbol	latex	symbol	latex	symbol	latex
	\leq		\geq		\equiv		\models
	\prec		\succ		\sim		\perp
	\preceq		\succeq		\simeq		\mid
	\ll		\gg		\asymp		\parallel
	\subset		\supset		\approx		\bowtie
	\subseteq		\supseteq		\cong		\Join
	\sqsubsete		\sqsupset		\neq		\smile
	\sqsubseteq		\sqsupseteq		\doteq		\frown
	\in		\ni		\propto		=
	\vdash		\dashv		<		>
	:

标点符号

symbol	latex	symbol	latex	symbol	latex	symbol	latex	symbol	latex
	,		;		\colon		\ldotp		\cdotp

箭头

symbol	latex	symbol	latex	symbol	latex
	\leftarrow		\longleftarrow		\uparrow
	\Leftarrow		$\Longleftarrow		\Uparrow
	\rightarrow		\longrightarrow		\downarrow
	\Rightarrow		\Longrightarrow		\Downarrow
	\leftrightarrow		\longleftrightarrow		\updownarrow
	\Leftrightarrow		\Longleftrightarrow		\Updownarrow
	\mapsto		\longmapsto		\nearrow
	\hookleftarrow		\hookrightarrow		\searrow
	\leftharpoonup		\rightharpoonup		\swarrow
	\leftharpoondown		\rightharpoondown		\nwarrow
	\rightleftharpoons		\leadsto

其他符号

symbol	latex	symbol	latex	symbol	latex	symbol	latex
	\ldots		\cdots		\vdots		\ddots
	\aleph		$\prime		\forall		\infty
	\hbar		\emptyset		\exists		\Box
	\imath		\nabla		\neg		\Diamond
	\jmath		\supset		\flat		\triangle
	\ell		\top		\natural		\clubsuit
	\wp		\bot		\sharp		\diamondsuit
	\Re		|		\backslash		\heartsuit
	\Im		\angle		\partial		\spadesuit
	\mho		.

大小可变符号

symbol	latex	symbol	latex	symbol	latex
	\sum		\bigcap		\bigodot
	\prod		$\bigcup		\bigotimes
	\coprod		\bigsqcup		\bigoplus
	\int		\bigvee		\biguplus
	\oint		\bigwedge

分隔符

symbol	latex	symbol	latex	symbol	latex	symbol	latex
	(		)		\uparrow		\Uparrow
	[		]		\downarrow		\Downarrow
	\{		\}		\updownarrow		\Updownarrow
	\lfloor		\rfloor		\lceil		\rceil
	\langle		\rangle		\arrowvert		\Arrowvert
	\rmoustache		\lmoustache		\rgroup		\lgroup
	\bracevert

重音符号

symbol	latex	symbol	latex	symbol	latex	symbol	latex
	\hat{a}		\acute{a}		\bar{a}		\dot{a}
	\check{a}		\grave{a}		\vec{a}		\ddot{a}
	\breve{a}		\tilde{a}

数学公式

常用公式

symbol	latex	symbol	latex
	\sqrt[5]{ab}		\sideset{^1_2}{^3_4}\otimes
	\${}^{12}_{\phantom{1}6}\textrm{C}		1+\frac{a}{\frac{b}{c} + 1}
	1+\cfrac{a}{\cfrac{b}{c} + 1}		1+\frac{a}{\dfrac{b}{c} + 1}
	1+\frac{a}{\tfrac{b}{c} + 1}		\binom{a}{b^2}
	\dbinom{a}{b^2}		\tbinom{a}{b^2}
	\stackrel{a}{b}		{a \atop b+c}
	{a \choose b+c}
	\sum_{i=1}^{n} c_i		\sum\nolimits_{i=1}^{n} c_i
	\prod_{i=1}^{n} c_i		\prod\nolimits_{i=1}^{n} c_i
	\lim_{i=1}^{n} c_i		\lim\nolimits_{i=1}^{n} c_i
	\int_{i=1}^{n} c_i		\int\nolimits_{i=1}^{n} c_i
	\iint		iiint
	\iiiint		\idotsint
	\overrightarrow{x + y}		\overline{a + b}
	\overbrace{a \dots a}^{n}		\underbrace{a \dots a}^{n}
	\widetilde{xyz}		\widehat{xyz}

括号

\Bigg(\bigg( \Big( \big( (x) \big) \Big) \bigg) \Bigg)

\Bigg\{ \bigg\{ \Big\{ \big\{ \{x\} \big\} \Big\} \bigg\} \Bigg\}

方程组

• aligned

\begin{aligned}
f(x) &= \cos x \\
f\prime(x) &= -\sin x \\
\int_{0}^{x} f(y)dy &= \sin x
\end{aligned}

• array

\left\{
  \begin{array}{c}
  a_{0}+a_{1}x_{0}+...+a_{n}x_{0}^{n}=y_{0} \\
  a_{0}+a_{1}x_{1}+...+a_{n}x_{1}^{n}=y_{1} \\
  \vdots\\
  a_{0}+a_{1}x_{n}+...+a_{n}x_{n}^{n}=y_{n} 
  \end{array}
\right.

• cases

\begin{cases}
3x + 5y + z \\
7x - 2y + 4z \\
-6x + 3y + 2z
\tag{1}
\end{cases}

矩阵

• matrix、pmatrix、bmatrix、Bmatrix、vmatrix、Vmatrix

\begin{gathered}
\begin{matrix} 0 & 1 \\ 1 & 0 \end{matrix}
\quad
\begin{pmatrix} 0 & -i \\ i & 0 \end{pmatrix}
\quad
\begin{bmatrix} 0 & -1 \\ 1 & 0 \end{bmatrix}
\quad
\begin{Bmatrix} 1 & 0 \\ 0 & -1 \end{Bmatrix}
\quad
\begin{vmatrix} a & b \\ c & d \end{vmatrix}
\quad
\begin{Vmatrix} i & 0 \\ 0 & -i \end{Vmatrix}
\end{gathered}

• array

\left(% 左括号
  \begin{array}{ccc}   % 该矩阵一共 3 列，每一列都居中放置
    a11 & a12 & a13\\  % 第一行元素
    a21 & a22 & a23\\  % 第二行元素
  \end{array}
\right)                 % 右括号